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Spring hinge structure for eyewear

a technology of spring hinges and eyewear, which is applied in the direction of spectacles/goggles, multi-purpose tools, instruments, etc., can solve the problems of defective products, disposed of, and temples made by the conventional techniques of the prior art, so as to prevent impairments

Inactive Publication Date: 2009-12-01
EURO VISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a new eyewear design that allows the temples to be opened and closed semi-automatically using a spring. The attachment portion is attached to the end of the front frame of the eyewear and has first hinge articulation elements. The temples have a hollow portion with a flat bottom and a U-shaped slide member with second hinge articulation elements. A compression coil spring is inserted into the housing between the front bump of the cover member and an inner periphery of the U-shaped slide member. A shaft screw is provided in the holes of the first and second hinge articulation elements to rotationally connect the temples. The front bump has a flat front surface that abuts only to the back surface of the first hinge articulation elements. The invention allows for easy adjustment of the temples and provides a better fit and comfort for the wearer."

Problems solved by technology

The temple made by the conventional techniques of the prior art takes a lot of time and is very expensive to produce.
The temple becomes a defective product or disposed just because a few defects occur at the temple in the course of manufacturing.

Method used

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  • Spring hinge structure for eyewear
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  • Spring hinge structure for eyewear

Examples

Experimental program
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third embodiment

[0035]FIG. 7 is the invention. A housing part 48 is provided, in which a front side face and an outside face of a hexahedral metal box are opened, and the remaining four faces form walls. The inner surfaces of the remaining four walls are formed in a flat shape, wherein only the bottom wall has through holes for fastening screws. A cover member integrally formed with one essential front bump and other optional rear bump having a screw hole, respectably, is fixed on the outside face of the hexahedral metal box by fastening screw. There is provided a metal core 40e extending rearward from rear surface of the rear wall of the hexahedral box, the metal core 40e is inserted into a resin or other soft material temple 40d, and the hexahedral metal box is inserted up to the front end of the temple and fixed.

fourth embodiment

[0036]FIG. 8 is the invention. There is provided an elongated wing or extension 48a extending from a bottom wall 49a of the hexahedral metal box 49, wherein the elongated wing or extension has at least a pair of projections 80 on its inner surface 49a. The projection 80 of the inner wall of the wing or extension is provided to contact a side surface 40g of a temple 40f made of resin or other soft material so that the hexahedral metal box is fixed tightly to the temple. Also, at least a pair of projections may be provided either on the inner wall 10f of the cover member 10b or on the inner wall of the wing or extension, or on the both wall.

fifth embodiment

[0037]FIG. 9 is the invention. There is provided an ornamental portion 50 on an outside surface of a cover member 15. The ornament may be formed by means of carving, pressing or machining, etc, and may be colored by proper means.

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PUM

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Abstract

A spring hinge for an eyewear includes a front frame having an attachment portion and a first articulation hinge element, a temple connected to the front frame and having a hollow housing at an end portion, a cover member with a front bump for covering an outside opening of the temple, and a U-shaped slide member with a second articulation hinge element. The U-shaped slide member is housed in the hollow housing to be slidable along a longitudinal direction of the temple. A compression coil spring is provided between the front bump and the U-shaped member in a compressed state. The temple and the attached portion are rotationally connected at the first and second articulation hinge elements. When the temple is pushed outwardly, the temple is opened from a position perpendicular to the front frame, while the compression coil spring is being compressed.

Description

BACKGROUND OF THE INVENTION AND RELATED ART STATEMENT[0001]This invention relates to a spring hinge for an eyewear, which is easily assembled and disassembled, and manufactured at a low cost.[0002]This invention is an improvement of U.S. Pat. No. 6,631,194 (Patent Document 1). The eyewear according to the prior art patent has been used, but there are some points to be improved. The present invention has been made to improve the problems in the prior art.[0003]In connection with the prior art shown in FIG. 11, the first object of the invention is to eliminate a difficulty of forming a bump 62 integrally within a temple hollow portion. The temple made by the conventional techniques of the prior art takes a lot of time and is very expensive to produce. The temple becomes a defective product or disposed just because a few defects occur at the temple in the course of manufacturing.[0004]The second object of the invention is, in FIG. 12, to eliminate a warp, unsteadiness, and loose fittin...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G02C5/22
CPCG02C5/2245Y10T16/526
Inventor FUKUOKA, HIROSHI
Owner EURO VISION